IDE for Pascal-family language

What is a good IDE for a Pascal-family language (Pascal, Oberon,
Modula-3, etc.)?  The emphasis is on "Integrated".

My requirements are as follows:

- integrated editor, compiler, debugger, and class browser
- set breakpoints in the editor (no need for a separate debugger)
- single-stepping shows the current line in the editor
- watchpoint window to view variables while single-stepping
- expression window to evaluate expressions
- full checking for overflow, range, null pointers, etc.

The project I'm working on is a simple non-interactive compiler,
so there's no need for a graphical interface builder.  At least
not yet...

I'm using Think Pascal on the Mac because it's the most productive
IDE I know of, despite its many drawbacks.  If there's anything
comparable that runs on any OS (not just MacOS), I'd like to hear
about it.  It need not be free.

Mike Sieweke

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Mike Sieweke
Duluth, GA